Listar Ciencias básicas por título
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Daños, efectos y amenaza de tsunamis en América Central
(2002)Desde 1539 hasta el presente han habido 49 tsunamis en América Central, 37 en el Pacífico y 12 en el Caribe; 10 de ellos tienen reportes de daños, siete en el Pacífico y tres en el Caribe. Estos tsunamis han cobrado cerca ... -
Datación por 210Pb y 137Cs en suelos sedimentarios
(2021)El uso de técnicas analíticas nucleares para datación tiene una gran cantidad de aplicaciones en diferentes ramas del conocimiento. La información extraída por el análisis permite asignar a un perfil de muestras el fechado ... -
Dataducto para construir Emuladores Estadísticos con datos de NARCCAP
(2019-01-25)El proyecto de investigación B7166 de la Universidad de Costa Rica tiene como objetivo principal presentar un marco estadístico para realizar una emulación de variables obtenidas por medio del Modelo Climático Regional ... -
Day/night change in orientation of the orb-weaver Azilia guatemalensis (Araneae: Tetragnathidae)
(2021)Most orb weavers orient downward on their orbs, but here we describe an unusual pattern of orientation in the tetragnathid Azilia guatemalensis. This species changes its orientation on the hub with a consistent day/night ... -
Decapods crustaceans associated with macroinvertebrates in the Pacific of Costa Rica
(2021)Decapod crustaceans are a diverse group that exploits various types of habitats in Costa Rica, where they represent 8.1% of the marine diversity of the country. This group includes families containing species with strictly ... -
Deciding the status of controversial phonemes using frequency distributions; An application to semiconsonants in Spanish
(2018)Exploiting the fact that natural languages are complex systems, the present exploratory article proposes a direct method based on frequency distributions that may be useful when making a decision on the status of problematic ... -
Deciphering key processes controlling rainfall isotopic variability during extreme tropical cyclones
(2019)The Mesoamerican and Caribbean (MAC) region is characterized by tropical cyclones (TCs), strong El Niño-Southern Oscillation events, and climate variability that bring unique hazards to socio-ecological systems. Here we ... -
Decisions during courtship by male and female medflies (Diptera, Tephritidae): Correlated changes in male behavior and female acceptance criteria in mass-reared flies
(Florida Entomologist 85(1):14-31. 2002, 2002-12)Análisis de más de 300 cortejos video-grabados de moscas del Mediterráneo silvestres y criadas en masas de Costa Rica demostraron que la tendencia de los machos y las hembras de alinearse cara a cara el uno frente al otro ... -
Definable Additive Subgroups of Partial Differential Fields of Characteristic Zero with an Automorphism
(2020-10-19)Abstract.The theory of partial differential fields of characteristic zero withan automorphism has a model companion denoted DCFmA. This theory isnot complete, but its completions are easily discribed. They are supersimpleand ... -
Definición de los servicios ecosistémicos, su valoración económica y su afectación por el cambio climático
(2023-02-22)Se presentan cinco infografías relacionadas con la definición de los servicios ecosistémicos, su valoración económica y su afectación por el cambio climático. Se muestran también algunos de los servicios ecosistémicos de ... -
Defining Generic Limits in Maxillaria. A Return to the Orchidaceous Mine
(2011)If one goes orchid hunting in the forests of Central or South America, odds are that one of the first orchids you will encounter will be a Maxillaria or one of its close relatives. Maxillarias comprise a large percentage ... -
Deformación sísmica reciente de la Sierra de Pie de Palo, Provincia de San Juan
(2014)En este trabajo se estudia la actividad sísmica en la sierra de Pie de Palo durante enero 2008 a diciembre 2009. Los datos utilizados fueron registrados por 52 estaciones sismológicas de los experimentos SIEMBRA y ESP. En ... -
Degree of intervention affects interannual and within-plot heterogeneity of seed arrival in tropical forest restoration
(2021-05-11)In degraded tropical landscapes, lack of seed dispersal can strongly limit recovery, and restoration interventions can overcome this barrier by attracting dispersers. However, seed dispersal patterns are typically studied ... -
Deletion of amelotin exons 3–6 is associated with amelogenesis imperfecta
(2016-07-12)Amelogenesis imperfecta (AI) is a heterogeneous group of genetic conditions that result in defective dental enamel formation. Amelotin (AMTN) is a secreted protein thought to act as a promoter of matrix mineralization in ... -
Demographic variation across successional stages and their effects on the population dynamics of the neotropical palm Euterpe precatoria
(2014)• Premise of the study: Environmental heterogeneity is a strong selective force shaping adaptation and population dynamics across temporal and spatial scales. Natural and anthropogenic gradients influence the variation of ... -
Demystifying Orchid Pollination
(2023)Demystifying Orchid Pollination explores the fascinating natural history of orchids and the extraordinary means by which they reproduce. Author Adam P. Karremans reveals their hidden secrets, from the cruel obsession of ... -
Dengue model with early-life stage of vectors and age-structure within host
(2019-12)We construct an epidemic model for the transmission of dengue fever with an early-life stage in the vector dynamics and age-structure within hosts. The early-life stage of the vector is modeled via a general function that ... -
Density functional theory on phase space
(2012)Forty-five years after the point de départ [Hohenberg and Kohn, Phys. Rev. 1964, B864, 136] of density functional theory, its applications in chemistry and the study of electronic structures keep steadily growing. However, ...